Ok, I'm new here so If I'm in the wrong place I apologize. I also apologize if this answer has been posted before, but it is hard to go through and read the millions of jailbreaking guides that are out there.

I have a Jailbroken iPhone 3Gs with 4.2.1 firmware. What I want to do, is back everything up, contacts, texts, apps, ect..If possible Id love to back up my customizations and stuff like that as well, but no bigge if I cant do that. I don't want to loose anything though, preferably.

Then I want to update my firmware to the latest untethered jailbreak, which I believe right now is 4.3.3, I was told by At&t that having the non-latest firmware can be one of the causes of my low signal strength, whether this is true or not I do not know but I would like to stay up to date on my firmware regardless.

So what I need is a guide on how to do what I mentioned above, and how to do it the easiest and safest way without loosing any of my data and apps.

I'm a bit of a noob when it comes to this stuff so the more in depth explanation the better, thanks in advance guys!

Guys, ill say this again. I'm a noob. I need step by step instructions here. Why am I saving my blobs? what are blobs? what do I do after I save said blobs? I can figure out how to use the program IFaith, but I still need to know what to do afterwards? haha Im sorry, im so unknowledgable about this stuff. :/

Guys, ill say this again. I'm a noob. I need step by step instructions here. Why am I saving my blobs? what are blobs? what do I do after I save said blobs? I can figure out how to use the program IFaith, but I still need to know what to do afterwards? haha Im sorry, im so unknowledgable about this stuff. :/

Con: according to this he havent yet saved his blobs.

Saving your blob will allow you to restore to the same firmware you have now on your iDevice.